參數(shù)資料
型號(hào): MPC8379E-RDBA
廠商: Freescale Semiconductor
文件頁數(shù): 84/117頁
文件大小: 0K
描述: BOARD REF DESIGN MPC8379E
標(biāo)準(zhǔn)包裝: 1
系列: PowerQUICC II™ PRO
類型: MPU
適用于相關(guān)產(chǎn)品: MPC8379E
所含物品:
MPC8379E PowerQUICC II Pro Processor Hardware Specifications, Rev. 8
Freescale Semiconductor
69
Using this waveform, the definitions are as follows. To simplify illustration, the following definitions
assume that the SerDes transmitter and receiver operate in a fully symmetrical differential signaling
environment.
Single-Ended Swing
The transmitter output signals and the receiver input signals SDn_TX, SDn_TX, SDn_RX and
SDn_RX each have a peak-to-peak swing of A B volts. This is also referred as each signal wire’s
single-ended swing.
Differential Output Voltage, VOD (or Differential Output Swing):
The differential output voltage (or swing) of the transmitter, VOD, is defined as the difference of
the two complimentary output voltages: VSDn_TX VSDn_TX. The VOD value can be either positive
or negative.
Differential Input Voltage, VID (or Differential Input Swing):
The differential input voltage (or swing) of the receiver, VID, is defined as the difference of the two
complimentary input voltages: VSDn_RX VSDn_RX. The VID value can be either positive or
negative.
Differential Peak Voltage, VDIFFp
The peak value of the differential transmitter output signal or the differential receiver input signal
is defined as differential peak voltage, VDIFFp = |A B| volts.
Differential Peak-to-Peak, VDIFFp-p
Since the differential output signal of the transmitter and the differential input signal of the receiver
each range from A – B to –(A – B) volts, the peak-to-peak value of the differential transmitter
output signal or the differential receiver input signal is defined as differential peak-to-peak voltage,
VDIFFp-p =2 × VDIFFp = 2 × |(A – B)| volts, which is twice of differential swing in amplitude, or
twice of the differential peak. For example, the output differential peak-peak voltage can also be
calculated as VTX-DIFFp-p = 2 × |VOD|.
Differential Waveform
The differential waveform is constructed by subtracting the inverting signal (SDn_TX, for
example) from the non-inverting signal (SDn_TX, for example) within a differential pair. There is
only one signal trace curve in a differential waveform. The voltage represented in the differential
waveform is not referenced to ground. Refer to Figure 57 as an example for differential waveform.
Common Mode Voltage, Vcm
The common mode voltage is equal to one half of the sum of the voltages between each conductor
of a balanced interchange circuit and ground. In this example, for SerDes output,
Vcm_out =(VSDn_TX +VSDn_TX) ÷ 2=(A + B) ÷ 2, which is the arithmetic mean of the two
complimentary output voltages within a differential pair. In a system, the common mode voltage
may often differ from one component’s output to the other’s input. Sometimes it may be even
different between the receiver input and driver output circuits within the same component. It is also
referred as the DC offset in some occasion.
相關(guān)PDF資料
PDF描述
AP432ASRG-7 IC VREF SHUNT PREC ADJ SOT23R
0210490805 CABLE JUMPER 1.25MM .229M 11POS
0210490804 CABLE JUMPER 1.25MM .229M 11POS
M1AGL1000-DEV-KIT KIT DEV IGLOO M1AGL
AP432AG-13 IC VREF SHUNT PREC ADJ 8-SOP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MPC8379E-RDBA 制造商:Freescale Semiconductor 功能描述:MPC8379E-RDB Reference Platform
MPC8379EVRAFDA 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications
MPC8379EVRAFFA 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications
MPC8379EVRAFGA 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications
MPC8379EVRAGD 功能描述:微處理器 - MPU PBGA W/ ENCR RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324